Add authorised routes with tests

test/support/fixtures/accounts_fixtures.ex

@@ -19,6 +19,18 @@ defmodule RealEstate.AccountsFixtures do
     user
   end
 
+  def admin_fixture(attrs \\ %{}) do
+    {:ok, user} =
+      attrs
+      |> Enum.into(%{
+        email: unique_user_email(),
+        password: valid_user_password()
+      })
+      |> RealEstate.Accounts.register_admin()
+
+    user
+  end
+
   def extract_user_token(fun) do
     {:ok, captured} = fun.(&"[TOKEN]#{&1}[TOKEN]")
     [_, token, _] = String.split(captured.body, "[TOKEN]")